package com.atguigu.gulimall.seckill.scheduled;

import com.atguigu.gulimall.seckill.service.SeckillService;
import lombok.extern.slf4j.Slf4j;
import org.redisson.api.RLock;
import org.redisson.api.RedissonClient;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Service;

import java.util.concurrent.TimeUnit;

/**
 * 每晚3点上架最近三天需要秒杀的商品
 */
@Slf4j
@Service
public class SeckillSkuScheduled {
    @Autowired
    SeckillService seckillService;
    @Autowired
    RedissonClient redissonClient;

    private final String upload_lock="seckill:upload:lock";

    //@Scheduled(cron = "0 0 3 * * ?")
    @Scheduled(cron = "* 46 3 * * ?")
    public void uploadSedkillSku() {
        //重复上架无需处理
        //分布式锁，只让一个服务执行
        RLock lock = redissonClient.getLock(upload_lock);
        lock.lock(10, TimeUnit.SECONDS);
        try {
            seckillService.uploadSedkillSku();
        }finally {
            lock.unlock();
        }
    }
}
